【摘要】 研究了在盐酸—碘化钾体系中,用甲基异丁基甲酮（MIBK）萃取富集微量铜和铅的碘络合物,与大量的锰分离,有机相用火焰原子吸收光谱法测定铜和铅。该方法灵敏度高、选择性好,测定范围:Cu,0.01×10^-4％～10×10^-4 ％;Pb,0.1×10^-4％～50×10^-4％。更多还原

【Abstract】 In the system of hydrochloric acid - potassium iodide, the Cu( Ⅱ) and Pb ( Ⅱ) ions were separated by extraction of their iodide anionic complexes with MIBK from an abundance of manganese. Copper and lead in organic phase were determined by flame atomic absorption spectrometry. The method is high sensitive and selective. The determine range of the method is 0. 01 × 10-4%-10 × 10-4% for copper, and 0. 1 × 10-4% -50 × 10-4% for lead.更多还原